In merry pin informal
Happy or cheerful; in a good mood
She's in merry pin because she has passed that test.
The boss isn't in merry pin today. Don't do anything to make him angry!
To make someone feel more confident or happy, especially when they thought that they can't achieve what they want
To smile broadly
Used to describe someone who is extremely happy
To be outperformed or outrun by someone, usually by a very wide margin.
You have to be quicker to finish this task or you will eat other my dust.